Light-cured resin and application thereof

A light-curing resin and application technology, applied in the preparation of test samples, instruments, analysis materials, etc., can solve the problems of long time for collodion coagulation, easy deformation of fibers, unfavorable fiber types, etc., and achieves rapid film formation. Controllable, high fiber dispersion, easy to obtain results

Active Publication Date: 2017-06-20
INSPECTION AND QUARANTINE TECHNOLOGY CENTER ZHONGSHAN ENTRY EXIT INSPECTION AND QUARANTINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the characteristics of collodion itself, the shortcomings have the following problems: 1) The fibers in the fiber cross-section made of collodion are squeezed each other, the fibers are prone to deformation, the boundaries of the fibers are blurred, and the cavity is not clear enough, which is not conducive to The identification of the species and the quality of the slice have a lot to do with the proficiency of the operator; 2) The collodion takes a long time to solidify, which takes 10 to 15 minutes, and only a very thin film layer is formed on the surface of the slicer. Layer slices are not fit and easy to warp, resulting in unclear slices under the microscope and inconsistent light transmittance. Since the collodion is not easy to penetrate between the fibers, it is not easy to form a complete slice when cutting the second and subsequent cuts. 3) Collodion is extremely flammable, and can cause combustion and explosion when exposed to open flames, high heat, oxidants or amines, and can spontaneously ignite after long-term storage, which is harmful to the human body

Method used

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  • Light-cured resin and application thereof
  • Light-cured resin and application thereof
  • Light-cured resin and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of photocurable resin of this embodiment is composed of the following components by mass percentage:

[0037]

[0038] The specific steps of using the photocurable resin prepared in this embodiment to make fiber cross-section slices are as follows:

[0039] 1) Put the fiber bundles neatly into the fiber slicer, cut off the exposed fibers with a sharp blade, then install the spring device, slightly rotate the precision screw to make the fiber bundles protrude from the metal bottom surface of the fiber slicer, and place The exposed fiber is cut off, and then the precision screw is slightly rotated to expose the fiber bundle;

[0040] 2) Coating a layer of the photocurable resin on the exposed fibers, and then irradiating for 10 seconds under an ultraviolet lamp with a wavelength of 320-400nm until the photocurable resin is dry;

[0041] 3) Slice with a sharp blade, discard the first knife, and slice again with a sharp blade (cutting edge thickness is 0.01mm), t...

Embodiment 2

[0044] A kind of photocurable resin of this embodiment is composed of the following components by mass percentage:

[0045]

[0046] The specific steps of using the photocurable resin prepared in this embodiment to make fiber cross-section slices are as follows:

[0047] 1) Put the fiber bundles neatly into the fiber slicer, cut off the exposed fibers with a sharp blade, then install the spring device, slightly rotate the precision screw to make the fiber bundles protrude from the metal bottom surface of the fiber slicer, and place The exposed fiber is cut off, and then the precision screw is slightly rotated to expose the fiber bundle;

[0048] 2) Coating a layer of the photocurable resin on the exposed fibers, and then irradiating for 15 seconds under an ultraviolet lamp with a wavelength of 320-400nm until the photocurable resin is dry;

[0049] 3) Slice with a sharp blade, discard the first knife, and slice again with a sharp blade (cutting edge thickness is 0.01mm), t...

Embodiment 3

[0052] A kind of photocurable resin of this embodiment is composed of the following components by mass percentage:

[0053]

[0054]The specific steps of using the photocurable resin prepared in this embodiment to make fiber cross-section slices are as follows:

[0055] 1) Put the fiber bundles neatly into the fiber slicer, cut off the exposed fibers with a sharp blade, then install the spring device, slightly rotate the precision screw to make the fiber bundles protrude from the metal bottom surface of the fiber slicer, and place The exposed fiber is cut off, and then the precision screw is slightly rotated to expose the fiber bundle;

[0056] 2) Coating a layer of the photocurable resin on the exposed fibers, and then irradiating for 15 seconds under an ultraviolet lamp with a wavelength of 320-400nm until the photocurable resin is dry;

[0057] 3) Slice with a sharp blade, discard the first knife, and slice again with a sharp blade (cutting edge thickness is 0.02mm), ta...

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Abstract

The invention discloses a light-cured resin and application thereof. The light-cured resin is prepared from the following components in percentage by mass: 4.6 to 10.8 percent of ethyl methacrylate, 4.6 to 9.2 percent of ethyl acetate, 80 to 90 percent of polyurethane acrylate, and 0.1 to 0.6 percent of benzophenone-1. The light-cured resin provided by the invention is cheap in raw materials, convenient to acquire, easy to store, poisonless and harmless to a human body, good in permeability when dripping on fiber, rapid and controllable in film formation, firm, ductile, easy to cut into slices, high in success rate, clear and distinguishable in sliced fiber cross section, less in fiber extrusion, high in fiber dispersion degree, clear in boundary and middle cavity, obvious in characteristics, and easy to distinguish.

Description

technical field [0001] The invention relates to the technical field of photocurable resins, in particular to a photocurable resin and its application. Background technique [0002] At present, in the process of making fiber cross-section slices, in order to harden the fibers and facilitate slicing, various fibers are mainly embedded in collodion. After the collodion is cured at room temperature, the slices are performed, and then the fibers in the slices are observed with a microscope. Section shape. Slicing is an important experimental technique in textile material testing. In terms of raw material and product inspection, identification and quality analysis are often carried out based on the morphological characteristics of the fiber longitudinal and cross-section combined with physical and chemical properties. The quality of fiber cross-section slices is The key to determining the test results. [0003] However, due to the characteristics of collodion itself, the shortco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F220/18G01N1/28
CPCC08F283/008G01N1/286G01N2001/2873C08F220/18
Inventor 王京力徐霞孙克强黄海欣
Owner INSPECTION AND QUARANTINE TECHNOLOGY CENTER ZHONGSHAN ENTRY EXIT INSPECTION AND QUARANTINE
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